Optimization of water and nitrogen management for surge-root irrigated apple trees in the Loess Plateau of China

The Loess Plateau is one of the main regions for growing apple trees in China, but a shortage of water resources and low utilization of nitrogen have restricted its agricultural development. A 2-year field experiment was conducted which included three levels of soil water content (SWC), 90–75%, 75–6...

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Bibliographic Details
Published in:Journal of Integrative Agriculture 2021-01, Vol.20 (1), p.260-273
Main Authors: DAI, Zhi-guang, FEI, Liang-jun, ZENG, Jian, HUANG, De-liang, LIU, Teng
Format: Article
Language:English
Subjects:
nitrogen partial factor productivity
surge-root irrigation
water use efficiency
yield
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Summary:The Loess Plateau is one of the main regions for growing apple trees in China, but a shortage of water resources and low utilization of nitrogen have restricted its agricultural development. A 2-year field experiment was conducted which included three levels of soil water content (SWC), 90–75%, 75–60%, and 60–45% of field capacity, and five levels of nitrogen application (Napp), 0.7, 0.6, 0.5, 0.4 and 0.3 kg/plant. The treatments were arranged in a strip-plot design with complete randomized blocks with three replications. For both years, the water and Napp had significant (P
ISSN:2095-3119
2352-3425
DOI:10.1016/S2095-3119(20)63283-X